Did you say "jump" ?

Lower YA

Different fun jumps near the lower YA :
double-jump from the second small stairs to go to the YA, or to the ledges around it.
From there, a normal jump with air control is possible.
Note you can also cross the gap with a regular strafe-jump

Other YA and fun

Upper YA

The other YA is another fun playground :
From the middle platform across the map, double-jump on the small brush with a cross on it to get up to the YA.
From the ledge beneath the YA, you have no less than 3 possible jumps to fly away :
Go along the wall and double-jump onto the small brush, or even double-jump to the middle platform (harder). Finally, a regular and easier couple of strafe-jumps will give you enough speed.

From YA to YA

Upper YA to Lower YA

This move is easy and very usefull : steal the 2 YAs in less than a second.

From the upper YA, jump normally down to the middle ledge. From there, head to the lower YA, don't jump but simply strafe in the air.

Lower YA to Upper YA

On the other hand, this move is almost impossible. I actually did it once, out of around 80 tries...

From the Lower YA, rocket-jump to the other YA. If you're really lucky, you can manage to land on the small brush from where a double-jump will take you where wished.

Around the MH

Around the Mega Health

From the Super Shotgun corner, a normal jump is enough to get on top of the LG ammo wall. This is interesting since from there a strafe-jump takes you right to the lower RL

You can also rocket-jump directly to the upper YA from down here.

The lower RL is yours

Get this lower RL

Note there is no need for a trick jump : a normal jump is enough (similar to the MH jump in q3dm13, the best com_maxfps seems to be 75)

You also have several double-jumps to chose from : on the small step, on the middle one (quick access coming from the 50H), or even on the big step, which is easier (head to the left of the RL).

Finally, a strafe-jump is enough to cross the map, particularly useful in the MH -> SSG -> LG Ammo -> RL path.

Don't you camp above the teleport !

Above the Mega Health

Down from the MH, you can rocket-jump directly to the upper YA.

From here, you can strafe-jump on top of the teleport. Just to yell "surprise !!" when your opponents comes out from the teleport :)

Quick access from the tele

Down at the 50H

Down here feet in the fog, a normal jump is ok to get the 50H (note the small step)

If you double-jump inside the teleport, you'll find yourself landing right at the 50H. Real quick and easy.

Quite useless tricks

A double-jump down the stairs takes you up at the LG ammo

From the upper YA, jump normally to the small ledge around the map. Not really usefull unless you are looking for a fun camping place.